Camshaft phase regulator

Abstract

The present disclosure provides a camshaft phase adjuster, including: a stator provided with a plurality of hydraulic chambers; a rotor rotatably disposed in the stator and provided with a basic body and a plurality of blades fixed to the basic body, the basic body has a first end surface and the second end surface which face opposite directions along an axial direction, the plurality of blades are arranged in intervals along the circumferential direction and divide the hydraulic chambers into first pressure chambers and second pressure chambers, respectively; wherein the basic body is provided with a plurality of first oil holes and a plurality of second oil holes which are communicated with the first pressure chambers and the second pressure chambers, respectively, the second oil hole is provided with at least two oil sub-holes, a first oil sub-hole extends along a radial direction of the basic body and is located on a same plane, with the first oil hole, perpendicular to a central axis of the rotor, the first oil sub-hole communicates with the second pressure chamber, and the second oil sub-hole penetrates through the first end surface along an axial direction of the basic body. Accordingly, technical solution of the present disclosure solves the problems of large in axial dimension and great in mass of existing camshaft phase adjusters.

1 . A camshaft phase adjuster, comprising:
 a stator provided with a plurality of protrusions, wherein the plurality of protrusions are arranged in intervals along a circumferential direction and extend inwardly along a radial direction, and hydraulic chambers are defined between neighboring ones of the plurality of protrusions;   a rotor rotatably disposed in the stator, the rotor comprises a basic body and a plurality of blades fixed to the basic body, the basic body has a first end surface and a second end surface which face opposite directions along an axial direction, the plurality of blades are arranged in intervals along the circumferential direction and outwardly extend into the hydraulic chambers along the radial direction to divide the hydraulic chambers into first pressure chambers and second pressure chambers, respectively;   the basic body is provided with a plurality of first oil holes and a plurality of second oil holes, the plurality of first oil holes are arranged in intervals along the circumferential direction and located on an outer circumferential surface of the basic body, and the plurality of first oil holes penetrate through the basic body along the radial direction and communicate with the first pressure chambers, respectively;   each of the plurality of second oil holes is provided with at least two oil sub-holes, the at least two oil sub-holes comprise a first oil sub-hole and a second oil sub-hole, the first oil sub-holes extend along a radial direction of the basic body and communicate with the second pressure chambers, respectively, the first oil sub-holes and the first oil holes are located on a same plane perpendicular to a central axis of the rotor, and the second oil sub-holes penetrate through the first end surface along an axial direction of the basic body and communicate with the first oil sub-holes, respectively.   
     
     
         2 . The camshaft phase adjuster according to  claim 1 , wherein each of the plurality of second oil holes is provided with two of the oil sub-holes which are arranged into a shape of L. 
     
     
         3 . The camshaft phase adjuster according to  claim 1 , wherein the second end surface is provided with a first groove, and an axial hole of the rotor penetrates through a bottom surface of the first groove along the axial direction. 
     
     
         4 . The camshaft phase adjuster according to  claim 1 , wherein the first end surface is provided with a second groove, the second oil sub-holes penetrate through a bottom surface of the second groove, and an axial hole of the rotor penetrates through the bottom surface of the second groove along the axial direction. 
     
     
         5 . The camshaft phase adjuster according to  claim 1 , wherein the first oil sub-holes penetrate through the outer circumferential surface of the basic body and do not penetrate through an inner circumferential surface of the basic body. 
     
     
         6 . The camshaft phase adjuster according to  claim 1 , wherein the second oil sub-holes do not penetrate through the second end surface.